My track marking blat at Spot X this morning was cut short by soapy water

In 6 years back on the bike, I've never had a flat - I change to TuBliss & have 0 psi in the outer chamber after 25 mins. Bugger.

All my doing, I'm afraid. What was holding pressure at home turned to poo after the tyre started doing its thing on the rocks out there. I must've split the bead adjacent to the inner edge (brand new Dunlop 110/100-18 MX52, new design) with a tyre lever on fitment & this was enough to allow the air to find a way out once she was bouncing around on the rim. Luckily the system did what it is designed to do & held the tyre on the rim til I got back to my car.

Just fitted a 1 ride old 120/90-18 MX52 (old tread pattern) in the shed & it looks good so far, no leaks..yet..

Moral - be very careful or a new tyre will be useless with TuBliss. Will keep it, though & run it with a UHD tube next change so I don't waste a tyre.

John, yep, understand how the system seals, and that's the spot it was bubbling, so yes, probably split all the way through.
Which seems weird, cos I wasn't cranking the sh1t out of it with the levers or anything